IRIDIUM 172, 43927
Orbit data source: Space-Track
IRIDIUM 172, 43927 is a payload satellite owned by Iridium (US) in LEO that was launched on Fri, 11 Jan 2019 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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43927 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
NGIS SSG Gilbert
Mission
Operational Commercial Communications
Bus & Motor
ELITEBUS, Unknown motor
Mass
860 kg wet, 700 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Trap Box + 2 Pan, 4.8 m
Radar Cross Section
10.154 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 17 hours ago
TLE from 17 hours ago
0 IRIDIUM 172
1 43927U 19002F 25302.94424687 .00000434 00000-0 14776-3 0 9992
2 43927 86.3929 89.8292 0002291 92.2677 267.8781 14.34219015355966Epoch: 2025-10-29T22:39Z
TLE epoch observation values (Epoch: 2025-10-29T22:39:42.929Z)
Latitude
-0.00004°
Longitude
71.39021°
Altitude
780.775 km
Speed
7.463 km/s
True Right ascension
05h 59m 19s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
10:54:40
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.266 km
Perigee altitude
772.989 km
Semi-major axis
7,152.765 km
Eccentricity
0.00023
Inclination
86.3929°
RAAN
89.8292°
Arg. of periapsis
92.2677°
True anomaly
267.85187°
Mean anomaly
267.8781°
Eccentric anomaly
267.86498°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.00014776
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Other satellites on launch #2 in the year 2019 (2019-01-11 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.IRIDIUM 172 Visibility forecast
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-10-30 21:01:22.041Z | 35.327° NE | 2025-10-30 21:04:22.041Z | 77.514° E | 20.87° | 2025-10-30 21:08:22.041Z | 128.614° SE |
| 7 mins | 2025-10-30 22:42:22.041Z | 329.397° NNW | 2025-10-30 22:45:22.041Z | 270.123° WNW | 32.193° | 2025-10-30 22:49:22.041Z | 209.964° SW |
| 8 mins | 2025-10-31 09:57:22.041Z | 151.753° SSE | 2025-10-31 10:00:22.041Z | 97.782° ESE | 35.988° | 2025-10-31 10:05:22.041Z | 15.471° NNE |
| 5 mins | 2025-10-31 11:39:22.041Z | 252.485° W | 2025-10-31 11:41:22.041Z | 279.656° WNW | 17.809° | 2025-10-31 11:44:22.041Z | 319.928° NNW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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